Regulatory class action lawsuit

Ostin Technology Group Pump-and-Dump Lawsuit

Analysis based on 8 articles · First reported Feb 17, 2026 · Last updated Mar 02, 2026

Sentiment

-40

Attention

Articles

Market Impact

Direct

Live prominence charts, article sentiment distribution, and event development timeline available on the NewsDesk Dashboard

Market Impact

The market is negatively impacted by the alleged pump-and-dump scheme involving Ostin Technology Group, as investors suffered significant losses. This event highlights the risks of market manipulation and the importance of regulatory oversight.

Consumer electronics Financial services

Event Summary

Robbins LLP has filed a class action lawsuit against Ostin Technology Group on behalf of investors who purchased its ordinary shares between May 11, 2025, and June 26, 2025. The lawsuit alleges that Ostin Technology Group engaged in a pump-and-dump scheme, orchestrated by its co-CEO Lai Kui Sen and financial advisor Yan Zhao. The scheme involved fraudulent securities offerings and a social media campaign to artificially inflate the stock price from $0.78 to $9.40. On June 26, 2025, the stock plummeted to $0.55, resulting in over $950 million in losses for investors. The United States===United States Department of Justice has unsealed a criminal indictment against Lai Kui Sen and Yan Zhao for securities and wire fraud.

Key Actions

100 Lai Kui Sen orchestrated pump-and-dump scheme Ostin Technology Group

100 Ostin Technology Group stock price plummeted

90 Robbins LLP filed class action lawsuit Ostin Technology Group

90 Yan Zhao facilitated pump-and-dump scheme Ostin Technology Group

80 United States===United States Department of Justice unsealed criminal indictment Lai Kui Sen

80 United States===United States Department of Justice unsealed criminal indictment Yan Zhao

Entities Involved

stock

Ostin Technology Group

Ostin Technology Group is facing a class action lawsuit for allegedly engaging in a pump-and-dump scheme that defrauded investors, leading to a significant loss in market capitalization. Its stock price plummeted by over 94% in a single day.

Importance 100 Sentiment -90

per

Lai Kui Sen

Lai Kui Sen, co-Chief Executive Officer of Ostin Technology Group, was criminally indicted for conspiracy to commit securities fraud and wire fraud, as he allegedly orchestrated the pump-and-dump scheme.

Importance 90 Sentiment -100

per

Yan Zhao

Yan Zhao, a financial advisor, was criminally indicted for conspiracy to commit securities fraud and wire fraud, as he allegedly facilitated the fraudulent scheme alongside Lai Kui Sen.

Importance 80 Sentiment -100

priv

Robbins LLP

Robbins LLP is a law firm that filed a class action lawsuit on behalf of investors who purchased Ostin Technology Group ordinary shares, seeking to help shareholders recover losses.

Importance 60 Sentiment 70

govactor

United States===United States Department of Justice

The United States===United States Department of Justice unsealed a criminal indictment against Lai Kui Sen and Yan Zhao, bringing charges related to the alleged pump-and-dump scheme.

Importance 50 Sentiment 0

exch

Nasdaq

Ostin Technology Group ordinary shares are traded on Nasdaq, where the fraudulent activities and subsequent stock price collapse occurred.

Importance 10 Sentiment 0

Relationships

Lai Kui Sen related ↔ Ostin Technology Group

Yan Zhao related ↔ Ostin Technology Group

Lai Kui Sen related ↔ Yan Zhao

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